The main SpketIDE Laszlo Editor page demonstrates many of the useful features Spket provides for OpenLaszlo development. Of course, there is color syntax highlighting support, but there is also support for more advanced features such as different types of code completion and occurrence marking. I like having the Laszlo documentation available in the editor as an added convenience because I otherwise find myself spending a lot of time flipping back and forth between my editor and the LZX Reference Manual.